For increased range and damage, try casting Shock Blast through the Acceleration Gate.
If you find yourself taking lots of damage, try using Jayce's Hammer Stance, as it grants you additional defenses.
Be sure to switch stances often. It will enhance your attacks and grant you quick bursts of speed.
Taste Their Fear deals bonus damage to targets that are isolated. Gain an advantage by fighting near allied minions, champions, or turrets.
Leap and Void Assault have long cooldowns. Kha'Zix is very vulnerable when these are not available.
The stat comparisons provided here show some important Jayce versus Kha'Zix matchup stats that may help us interpret the differences and similarities between this set of champions. As an example, Jayce’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Kha'Zix’s KDA ratio of NaN, highlighting that Jayce may be more central to his team's team fighting effectiveness than Kha'Zix..
Jayce typically has a slightly smaller longest killing spree than his counter does. Commonly, he receives less damage than Kha'Zix. This often reflects differing health capacities, but it can also illustrate that the one champion has less agility and thus is unable to flee from additional damage when poked or engaged.
Both League champions are great. Both champs have their pros and cons. In the game's current meta, Jayce usually loses when playing against Kha'Zix, with a 47.6% win rate. As a result, Jayce makes a bad counter for Kha'Zix.
While Jayce does have a lower winrate compared to Kha'Zix, when on opposite teams, Jayce also has a greater learning curve that makes him a more complex champion to develop with. You should expect to face a difficult match when picking Jayce into Kha'Zixas his relative depth means that you may not be able to reach his full potential without a lot of practice beforehand.
Furthermore, Jayce has almost no amount of CC and other utility, a similar amount to Kha'Zix. This often makes her just as valuable during teamfights, especially when facing champions with a lot of burst damage.
While there is not one best champion overall in League of Legends, in Jayce vs Kha'Zix matchups, Kha'Zix is the better champion with a lower win rate, more champion depth, and a similar amount of utility to help out your teammates during teamfights.
Jayce is a trash counter for Kha'Zix. You will do well by focussing your play on increasing your gold income and clearing objectives. If you do that, you should do very well as Jayce against Kha'Zix.
To truly master Jayce in order to counter Kha'Zix during both the early game and mid / late game phases of League of Legends, you should continue reading to pick up a few extra lessons on this matchup. If you listen to the build and stats presented above, you will grow your win rate significantly and be closer to League of Legends pro players.
Jayce most often accumulates much more CS relative to Kha'Zix. Champions who typically don't take many minion kills usualy don't require much CS to be effective, such as supports. They are able to scale well off of their abilities and first items alone. Yet, champs with a lot of CS, such as hyper-carries, often have to have a lot of items to be effective. In either case, try to surpass the numbers shown on this page to do well.
The ideal items to have in your Jayce versus Kha'Zix build include Muramana, Serylda's Grudge, and Opportunity. When Jayce included at least these three items in his build, he did significantly better countering Kha'Zix than with many other commonly used builds. In fact, Jayce boasted an average win rate of 47.6% battling Kha'Zix with this counter build.
To have the greatest chance of vanquishing Kha'Zix as Jayce, you should equip the Phase Rush, Manaflow Band, Absolute Focus, Gathering Storm, Biscuit Delivery, and Magical Footwear runes from the Sorcery and Inspiration rune sets. Out of all the rune builds players picked for Jayce vs Kha'Zix matchups, this blending of runes yielded the highest win rate. In fact, these runes provided a 47.6% winrate overall.
If you want to view Jayce versus Kha'Zix tips and counter stats for a a specific rank, feel free to choose one from the selection menu provided above. At first, the statistics and guides given are computed using every round played with both champions.